SOLUTION: random sample of 200 students and calculates a sample mean of 1600 and a sample standard deviation of 90 with the 95% confidence interval

Algebra ->  Probability-and-statistics -> SOLUTION: random sample of 200 students and calculates a sample mean of 1600 and a sample standard deviation of 90 with the 95% confidence interval      Log On


   

Question 881726: random sample of 200 students and calculates a sample mean of 1600 and a sample standard deviation of 90 with the 95% confidence interval
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
ME = 1.96(90/sqrt(200)) = 12.47
CI: 1600-ME < u < 1600 + ME
CI: 1600-12 < u < 1600 + 12